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// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Core.Native
{
using System;
/// <summary>
/// Properties of a file in a cabinet.
/// </summary>
public sealed class CabinetFileInfo
{
/// <summary>
/// Constructs CabinetFileInfo
/// </summary>
/// <param name="fileId">File Id</param>
/// <param name="size">Size of file</param>
/// <param name="date">Last modified date</param>
/// <param name="time">Last modified time</param>
public CabinetFileInfo(string fileId, int size, int date, int time)
{
this.FileId = fileId;
this.Size = size;
this.Date = date;
this.Time = time;
}
/// <summary>
/// Gets the file Id of the file.
/// </summary>
/// <value>file Id</value>
public string FileId { get; }
/// <summary>
/// Gets modified date (DOS format).
/// </summary>
public int Date { get; }
/// <summary>
/// Gets modified time (DOS format).
/// </summary>
public int Time { get; }
/// <summary>
/// Gets the size of the file in bytes.
/// </summary>
public int Size { get; }
/// <summary>
/// Compares this file info's date and time with another datetime.
/// </summary>
/// <param name="dateTime">Date and time to compare with/</param>
/// <returns>
/// For some reason DateTime.ToLocalTime() does not match kernel32.dll FileTimeToLocalFileTime().
/// Since cabinets store date and time with the kernel32.dll functions, we need to convert DateTime
/// to local file time using the kernel32.dll functions.
/// </returns>
public bool SameAsDateTime(DateTime dateTime)
{
long filetime = dateTime.ToFileTime();
long localTime = 0;
NativeMethods.FileTimeToLocalFileTime(ref filetime, ref localTime);
NativeMethods.FileTimeToDosDateTime(ref localTime, out var cabDate, out var cabTime);
return this.Date == cabDate && this.Time == cabTime;
}
}
}
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